Genotypic value in hybrid progenies of Panicum maximum Jacq.

ABSTRACT: Genetic breeding of forage plants has increasingly contributed to the release of more productive plants. In this regard, evaluating the genotypic value is essential when aiming to rank genotypes based on the mean free of environmental factors. Therefore, this study aimed to predict the genotypic value of agronomic and nutritive value characters of three progenies of Panicum maximum. Hybrids were evaluated in a clonal test in an incomplete-randomized design with three treatments (progenies 1, 2, and 3) and two replications (clones). Six harvests were performed at 25cm from the ground level throughout one year. Progeny 2 provided better results for total and leaf dry mass yield, regrowth, and height, and lower incidence of leaf spot. Progenies 1 and 3 had a better response for qualitative characters such as higher crude protein and digestibility and lower lignin and fiber content. Hybrid progenies of P. maximum have forage characters of interest for breeding, and when using ‘Mombaça’ grass as parents, the progeny stands out for leaf production and resistance to leaf spot and for ‘Tanzania’ grass as parent has resulted in better forage quality.

Bibliographic Details

Main Authors:	Braz,Thiago Gomes dos Santos, Martuscello,Janaina Azevedo, Jank,Liana, Fonseca,Dilermando Miranda da, Resende,Marcos Deon Vilela, Evaristo,Anderson Barbosa
Format:	Digital revista
Language:	English
Published:	Universidade Federal de Santa Maria 2017
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900401
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